Untitled

import React, { useRef, useState } from 'react';
import { Lift } from '@d-lift/core';

import {
    SimpleFileUpload,
    Label,
    Button,
    Group,
    Section,
    ListItem,
    List,
} from '@d-lift/uxcomponents';
import * as XLSX from 'xlsx';
import moment from 'moment';
import ConstantKeys from '@/Constants/ConstantKeys';
import webService from '@/Services/WebService';

const ExcelUpload = () => {
    const [status, setStatus] = useState('initial');
    const [uploadedFiles, setUploadedFiles] = useState([]);
    const fileInputRef = useRef(null);
    const [selectedFile, setSelectedFile] = useState(null);

    const handleFileChange = (e) => {
        if (Array.isArray(e) && e.length > 0) {
            const newFile = e[0];
            setSelectedFile(newFile);
            handleUpload(newFile);
        } else {
            console.log('No file selected');
        }
    };

    const handleUpload = async (file) => {
        try {
            if (!file) {
                console.error('No file selected');
                setStatus('fail');
                return;
            }

            console.log('Processing file:', file);
            const reader = new FileReader();
            reader.onload = (event) => {
                const data = new Uint8Array(event.target.result);
                const workbook = XLSX.read(data, { type: 'array' });
                const firstSheetName = workbook.SheetNames[0];
                const worksheet = workbook.Sheets[firstSheetName];
                const jsonData = XLSX.utils.sheet_to_json(worksheet, { header: 1, defval: '' });

                const validationResult = validateData(jsonData);
                if (validationResult.isValid) {
                    convertToJSONAndUpload(jsonData);
                } else {
                    console.log('validationResult:', validationResult);
                    console.log('errors:', validationResult.errors);

                    Lift.Application.Notification.error(`${validationResult.errors}`);
                    setStatus('fail');
                }
            };
            reader.readAsArrayBuffer(file);

            setUploadedFiles((prevFiles) => [
                ...prevFiles,
                {
                    id: Math.random() * 100 + 1,
                    name: file.name,
                },
            ]);

            setStatus('success');
        } catch (error) {
            console.error(error);
            setStatus('fail');
        }
    };

    const validateData = (data) => {
        let isValid = true;
        let errors = [];

        const headers = data.map((row) => row[0] && row[0].toLowerCase());
        const requiredHeaders = ['title', 'offering', 'needed by', 'state'];

        // Check mandatory headers
        requiredHeaders.forEach((header) => {
            if (!headers.includes(header)) {
                isValid = false;
                errors.push(`Missing mandatory header: ${header}`);
            }
        });

        // Map the indexes of required headers
        const headerIndexes = {
            title: headers.indexOf('title'),
            offering: headers.indexOf('offering'),
            neededBy: headers.indexOf('needed by'),
            state: headers.indexOf('state'),
        };

        // Validate each mandatory field
        Object.keys(headerIndexes).forEach((key) => {
            const rowIndex = headerIndexes[key];
            const fieldValue = data[rowIndex][1]; // Value in the second column

            if (fieldValue === '' || fieldValue === undefined) {
                isValid = false;
                errors.push(`Error in row ${rowIndex + 1}: ${key} is a mandatory field`);
            }

            // Specific validation for 'needed by' field
            // if (key === 'neededBy') {
            //     const dateValue = fieldValue;
            //     let date;

            //     // Check if the date is in Excel date format (numeric)
            //     if (typeof dateValue === 'number') {
            //         date = moment('1900-01-01').add(dateValue - 2, 'days'); // Excel date system
            //     } else {
            //         date = moment(dateValue, 'MM/DD/YYYY', true);
            //     }

            //     if (!date.isValid() || date.isBefore(moment(), 'day')) {
            //         isValid = false;
            //         errors.push(
            //             `Error in row ${
            //                 rowIndex + 1
            //             }: ${key} cannot be in the past or an invalid date`,
            //         );
            //     }
            // }
        });

        return { isValid, errors };
    };

    const convertToJSONAndUpload = (data) => {
        const jsonData = {};

        // Extract the main fields
        data.forEach((row) => {
            const header = row[0];
            const value = row[1];

            if (header) {
                if (header.toLowerCase() === 'needed by') {
                    jsonData['Needed by'] = moment('1900-01-01').add(value - 2, 'days').format('DD/MM/YYYY');
                } else {
                    jsonData[header] = value;
                }
            }
        });

        // Extract the questions and responses
        const questionStartRow = 7;
        const questions = [];
        let currentQuestion = null;

        for (let i = questionStartRow; i < data.length; i++) {
            const row = data[i];
            const header = row[0];
            const value = row[1];

            if (header && value) {
                if (!currentQuestion || !currentQuestion.question || !header.toLowerCase().startsWith('question')) {
                    currentQuestion = { question: header, responses: [] };
                    questions.push(currentQuestion);
                } else {
                    currentQuestion.responses.push({ response: value, state: header });
                }
            }
        }

        jsonData['Questions'] = questions;

        console.log('jsonData:', jsonData);
        // callAPIToInsertData(jsonData);
    };

    const callAPIToInsertData = async (data) => {
        try {
            Lift.spinner.show();
            //------- will need to convert "needed by" field value before service call.---------

            // const requestFromExcel = {
            //     ...data,data.needed by = moment('1900-01-01').add(dateValue - 2, 'days');
            // };

            const response = await webService.createRFIRequest({
                requestBody: data,
            });

            if (response.message.code === ConstantKeys.RESPONSE_CODES.success) {
                Lift.Application.Notification.success(
                    ConstantKeys.NOTIFICATION.MSG.SUCCESS.EXCEL_UPLOAD_SUCCESS,
                );
            }
        } catch (error) {
            Lift.Application.Notification.error(
                ConstantKeys.NOTIFICATION.MSG.ERR.EXCEL_UPLOAD_FAILURE,
            );
        } finally {
            Lift.spinner.hide();
        }
    };

    return (
        <>
            <div className="ux-rfi-attachment-container ux-rfi-green-border">
                <Group width="6,6">
                    <Label
                        className="mb-0"
                        model="AddAttachments.fileList"
                        labelKey="attachments"></Label>
                    <a
                        href="/images/sample-format.xlsx"
                        download="sample-format.xlsx"
                        style={{ textDecoration: 'none' }}>
                        <Button
                            size="small"
                            className="ux-rfi-green-button float-right"
                            labelKey="download_sample"
                            postIconClass="fa fa-download"></Button>
                    </a>
                </Group>

                <Section className="pt-4">
                    <List>
                        {uploadedFiles.length > 0 ? (
                            uploadedFiles.map((file) => (
                                <ListItem key={file.id} iconKey={null}>
                                    {file.name}
                                </ListItem>
                            ))
                        ) : (
                            <ListItem iconKey={null} labelKey="empty_err"></ListItem>
                        )}
                    </List>
                    <SimpleFileUpload
                        model="AddAttachments.uploadedFiles"
                        allowDragAndDrop={false}
                        inputDisplayType="custom"
                        ref={fileInputRef}
                        style={{ display: 'none' }}
                        onDropAccepted={handleFileChange}
                        accept=".xls,.xlsx">
                        <Button
                            size="small"
                            click={() => fileInputRef.current && fileInputRef.current.click()}
                            className="ux-rfi-green-button"
                            preIconClass="fa fa-plus"
                            labelKey="add_attachment"></Button>
                    </SimpleFileUpload>
                </Section>
            </div>
        </>
    );
};

export default ExcelUpload;